Iceland is defined by its complex hydrology — gigantic waterfalls, explosive geysers, burbling mud pots, cracking ice lagoons, natural pools where people congregate — and the isle is full of noises. Photo illustrations by Matthew Brandt. Field recordings by Anna Friz and Konrad Korabiewski.

In the September, 23, 2018 issue of The New York Times Magazine, you will find on page 78 a bonus puzzle created especially for this unique audio edition. This crossword, the first of its kind that we’ve produced, contains a mix of print and audio clues. You can hear the audio clues here.